Literature DB >> 17790694

Cyanamide Formation under Primitive Earth Conditions.

A Schimpl, R M Lemmon, M Calvin.   

Abstract

The dimer of cyanamide, dicyandiamide, is formed upon ultraviolet irradiation of dilute cyanide solutions, and by the electron irradiation of a mixture of methane, ammonia, and water. Thus cyanamide may have had an important role in chemical evolution.

Entities:  

Year:  1965        PMID： 17790694     DOI： 10.1126/science.147.3654.149

Source DB:  PubMed          Journal:  Science        ISSN： 0036-8075            Impact factor:   47.728


  21 in total

1.  Isolation and properties of a nitrile hydratase from the soil fungus Myrothecium verrucaria that is highly specific for the fertilizer cyanamide and cloning of its gene.

Authors:  U H Maier-Greiner; B M Obermaier-Skrobranek; L M Estermaier; W Kammerloher; C Freund; C Wülfing; U I Burkert; D H Matern; M Breuer; M Eulitz
Journal:  Proc Natl Acad Sci U S A       Date:  1991-05-15       Impact factor: 11.205

2.  THE FORMATION OF CONDENSED PHOSPHATE IN AQUEOUS SOLUTION.

Authors:  A Beck; L E Orgel
Journal:  Proc Natl Acad Sci U S A       Date:  1965-09       Impact factor: 11.205

3.  Chemical events on the primitive Earth.

Authors:  P H Abelson
Journal:  Proc Natl Acad Sci U S A       Date:  1966-06       Impact factor: 11.205

4.  Formation of urea and guanidine by irradiation of ammonium cyanide.

Authors:  R Lohrmann
Journal:  J Mol Evol       Date:  1972       Impact factor: 2.395

5.  Synthesis of biologically pertinent peptides under possible primordial conditions.

Authors:  G Steinman; M N Cole
Journal:  Proc Natl Acad Sci U S A       Date:  1967-08       Impact factor: 11.205

Review 6.  Current status of chemical studies on the origin of life.

Authors:  C Ponnamperuma; N W Gabel
Journal:  Space Life Sci       Date:  1968-03

7.  Prebiotic condensation reactions in an aqueous medium: a review of condensing agents.

Authors:  J Hulshof; C Ponnamperuma
Journal:  Orig Life       Date:  1976-08

8.  Infrared spectral characterization of peptidic material produced by ionizing radiation in aqueous cyanides.

Authors:  I G Draganić; Z D Draganić; S Jovanović; S V Ribnikar
Journal:  J Mol Evol       Date:  1977-11-25       Impact factor: 2.395

9.  Cyanamide mediated syntheses of peptides containing histidine and hydrophobic amino acids.

Authors:  J R Hawker; J Oró
Journal:  J Mol Evol       Date:  1981       Impact factor: 2.395

10.  Peptide formation mediated by hydrogen cyanide tetramer: a possible prebiotic process.

Authors:  S Chang; J Flores; C Ponnamperuma
Journal:  Proc Natl Acad Sci U S A       Date:  1969-11       Impact factor: 11.205
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